Creates keys in /home/chef/.ssh/ from a data bag.
/home/chef belongs to user chef which belongs to group chef.
keys/databag: string containing name of data bag containing the keyskeys/key_name: name of the keypair to be copied
keys: copies keys into/home/chef/.ssh/
"ssh_keys": {
  "machine_1": {
    "id_rsa": "private key goes here",
    "id_rsa.pub": "public key goes here"
  }
}
- Written by Carlo Zottmann
 - Liability in case of anything: definitely not me.
 - License: WTFPL.